Arsenic werc project  

 

http://www.who.int/mediacentre/factsheets/fs210/en/

http://www.unu.edu/env/Arsenic/Hussain.pdf

 

 

1. Group come up with a list of solutions for arsenic removal of drinking water (assign best chemist to look at possible solutions and report to group for this water source.  See chemistry professor for advice or  Dr. Bill Boyle in Soil Water Testing Lab. 

 

Source Water Characteristics

Concentration mg/L

Min

Avg.

Max

Alkalinity

144

 

500

Arsenic (V)

0.005

.03

.2

Calcium

10

40.1

50

Bi-Carbonate

130

183

200

Chloride

 

71

75

Copper

 

 

1.3

Fluoride

0.6

1

5.2

Iron

 

 

2.5

Magnesium

5

12.6

15

Nitrate

 

50

85

pH

7.1

7.5

8.3

Phosphate

 

.04

2.5

Silicate

0.1

20

50

Sodium

15

73.7

75

Sulfate

 

50

500

TDS

 

 

2000

Total Hardness

90

 

540

Turbidity (NTU)

0.24

 

0.48

 

2.  Assign each solution to one person and have person report on  materials, supplies, operations, maintenance, energy costs, waste disposition and all associated capital or operating expenses. In the waste disposal evaluate the environmental impact of the waste disposal. 

3. Evaluate each solution as to

4. Rank and select the best solution. Group activity 

5. write up ( each person does this for their alternative( 6 people)  and then two  persons puts the write up together in rough draft.. Then each member of the group reviews and edits make additions( 5 people) and gives to final editor ( six person) so the final editor complies all changes into the final draft.   The three people other then the rough draft people and the the final editor  puts the power point presentation together.) Divide power point into three sections for presentation.

6. Each student evaluate each other student.

 Write up 

Introduction defining problem

Section on alternatives solutions (2)

Section on evaluation of alternatives  (3)

Final selection (4) and then complete details on

Equation and calculations of all  scientific processes should be presented. General drawing of equipment should be presented.

Conclusion and any recommendations

References